Clinical Tools

Calculators for everyday anesthesia practice. Free, no login, nothing you enter leaves your browser.

• Allowable Blood Loss
  Estimated blood volume and allowable loss from weight, patient type, and starting versus lowest acceptable hematocrit. Shows both the standard and the Gross average-hematocrit results.
• Maximum Local Anesthetic Dose
  Cumulative dose across multiple local anesthetics, with and without epinephrine. Reports each drug as a percentage of its own ceiling and sums them, since toxicity is conventionally treated as additive.

What these are, and what they are not

Each tool shows its formula and its source numbers on the page, so you can check the arithmetic rather than trust it. Where the literature disagrees — and for allowable blood loss and local anesthetic maxima, it does — the disagreement is shown rather than hidden behind a single number.

Nothing is sent to a server. There is no account, no tracking of what you calculate, and no stored patient data. Everything runs locally in your browser.

Related

• Local Anesthetic Systemic Toxicity — recognition, lipid rescue dosing, and modified ACLS.
• Q-Bank — free board-style question bank for anesthesia residents.